$($Solving for $n$ with non$-$annual periods$)$ Approximately how many years would it take for an investment to grow

sixfold if it were invested at $14$ percent compounded semiannually? Assume that you invest $$1$ today.

If you invest $$1$ at $14$ percent compounded semiannually, about how many years would it take for your investment to

grow sixfold to $$6?($Hint: Remember to convert your calculator solution to years.$)$

years $($Round to one decimal place.$)$